They make better use of the strongest muscle groups (increasing positive work) and compensate for the weaker zones in the pedalling stroke (reducing negative work). Q-Rings can increase an avid cyclist’s performance by as much as 4 seconds per km in a sprint.Aero version of Q-Rings is an aerodynamic chainring. Coupled with ROTOR crankset with AERO star or a flow, you will be equipped with the top in terms of aerodynamics.